Bill Kostyak

Partner

Bill Kostyak is a senior financial‑services executive and advisor with decades of experience in strategic finance, operational leadership, and enterprise planning within complex banking environments. His career reflects a sustained focus on strengthening financial governance, improving transparency, and supporting disciplined, long‑term growth. Bill is a CPA and a Chartered Financial Analyst®

Bill brings deep expertise in capital planning, financial operations, and organizational transformation. He has worked closely with executive leadership and boards to design planning frameworks, enhance regulatory confidence, and modernize financial processes, balancing rigorous oversight with practical execution.

At The Enosys Group, Bill partners with clients to address financial and operational challenges at the enterprise level, helping leadership teams align strategy, governance, and execution. He is valued for his steady leadership style, analytical rigor, and ability to serve as a trusted advisor in periods of change.